The TRANSMISSION of acoustic energy through a medium via a SOUND WAVE. See: SOUND, SPEED OF SOUND. Compare: ACOUSTIC RADIATION. The levels of outdoor NOISE, whether they are intrusive or the normal ...
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Researchers make sound waves travel in one direction only, with implications for electromagnetic wave technologyTen years ago, researchers succeeded in suppressing sound wave propagation in the backward direction; however, this also attenuated the waves traveling forwards. A team of researchers at ETH ...
Sound is a vibration that travels through air as a wave. These waves are created when an object moves back and forth, compressing and decompressing air molecules. The frequency of these vibrations ...
The small black loudspeaker that generated the sound waves can be seen on the ... grating during the experiment to measure the propagation of the waves can be seen on the far right.
Acousto-optics is a versatile technology that allows users to precisely and rapidly control the wavelength, amplitude and propagation ... uses high-frequency sound waves, usually in the megahertz ...
The effects described above can be implemented by cancelling the forward characteristics of the linear loudspeaker array, and then overlaying the desired sound-wave propagation characteristics.
The TRANSMISSION of acoustic energy through a medium via a SOUND WAVE. See: SOUND, SPEED OF SOUND. Compare: ACOUSTIC RADIATION. The levels of outdoor NOISE, whether they are intrusive or the normal ...
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